зеркало из https://github.com/mozilla/gecko-dev.git
55 строки
1.9 KiB
C++
55 строки
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
#ifndef nsIInputStream_h___
|
|
#define nsIInputStream_h___
|
|
|
|
#include "nsIBaseStream.h"
|
|
|
|
#define NS_IINPUTSTREAM_IID \
|
|
{ 0x022396f0, 0x93b5, 0x11d1, \
|
|
{0x89, 0x5b, 0x00, 0x60, 0x08, 0x91, 0x1b, 0x81} }
|
|
|
|
/** Abstract byte input stream */
|
|
class nsIInputStream : public nsIBaseStream {
|
|
public:
|
|
|
|
static const nsIID& GetIID() { static nsIID iid = NS_IINPUTSTREAM_IID; return iid; }
|
|
|
|
/** Return the number of bytes in the stream
|
|
* @param aLength out parameter to hold the length
|
|
* of the stream. if an error occurs, the length
|
|
* will be undefined
|
|
* @return error status
|
|
*/
|
|
NS_IMETHOD
|
|
GetLength(PRUint32 *aLength) = 0;
|
|
|
|
/** Read data from the stream.
|
|
* @param aBuf the buffer into which the data is read
|
|
* @param aCount the maximum number of bytes to read
|
|
* @param aReadCount out parameter to hold the number of
|
|
* bytes read, eof if 0. if an error occurs, the
|
|
* read count will be undefined
|
|
* @return error status
|
|
*/
|
|
NS_IMETHOD
|
|
Read(char* aBuf, PRUint32 aCount, PRUint32 *aReadCount) = 0;
|
|
};
|
|
|
|
#endif /* nsInputStream_h___ */
|